Home / 815,026.30-1,222,500-309,547.84

Finding the Fourth Proportional to 815,026.30, 1,222,500 and 309,547.84

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Solution

The fourth proportional to 815,026.30, 1,222,500 and 309,547.84 is: 464,306.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,026.30 : 1,222,500 = 309,547.84 : x
  2. Step 2: Convert to fraction form
    815,026.30/1,222,500 = 309,547.84/x
  3. Step 3: Cross multiply
    815,026.30x = 1,222,500 × 309,547.84
  4. Step 4: Simplify right side
    815,026.30x = 378,422,234,400.00
  5. Step 5: Solve for x
    x = 378,422,234,400.00/815,026.30
  6. Step 6: Final answer
    x = 464,306.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.